Electronic device

ABSTRACT

An electronic device including: a display layer; and a sensor layer that includes: first electrodes in a sensing area and having different lengths; second electrodes in the sensing area; first cross electrodes in the sensing area; second cross electrodes in the sensing area and having different lengths; pads in a. peripheral area; first lines extended from the first electrodes at a first side of the sensing area towards the pads; second lines extended from the second electrodes at a second. side of the sensing area towards the pads; first cross lines extending from the first cross electrodes towards the pads; and second cross lines extending from the second cross electrodes towards the pads, the first lines being different from the second lines in number, and the first cross lines being different from the second cross lines in number.

CROSS-REFERENCE TO RELATED APPLICATION

This U.S. non-provisional patent application claims priority under 35U.S.C. § 119 to Korean Patent Application No. 10-2020-0128090, filed onOct. 5, 2020, the disclosure of which is incorporated by referenceherein in its entirety.

TECHNICAL FIELD

The present disclosure relates to an electronic device including asensor layer having increased sensing sensitivity.

DISCUSSION OF RELATED ART

Electronic devices, such as display devices, may include display layersfor displaying images and sensor layers for detecting external inputs.In this case, the electronic device may be said to employ a touchscreen. The sensor layers may include a plurality of electrodes.Recently, with electronic devices having active areas in various shapes,the plurality of electrodes may have different lengths.

SUMMARY

An embodiment of the inventive concept provides an electronic deviceincluding: a display layer configured to display images; and a sensorlayer disposed on the display layer, wherein the sensor layer includes:a plurality of first electrodes disposed in a sensing area of the sensorlayer, arranged along a first direction, and having different lengths; aplurality of second electrodes disposed in the sensing area and arrangedalong the first direction; a plurality of first cross electrodesdisposed in the sensing area and arranged along a second directioncrossing the first direction; a plurality of second cross electrodesdisposed in the sensing area, arranged along the second direction, andhaving different lengths; a plurality of pads disposed in a peripheralarea of the sensor layer; a plurality of first lines extended from theplurality of first electrodes at a first side of the sensing areatowards the plurality of pads; a plurality of second lines extended fromthe plurality of second electrodes at a second side of the sensing area,which is different from the first side, towards the plurality of pads; aplurality of first cross lines extending from the plurality of firstcross electrodes towards the plurality of pads; and a plurality ofsecond cross lines extending from the plurality of second crosselectrodes towards the plurality of pads, the plurality of first linesbeing different from the plurality of second lines in number, and theplurality of first cross lines being different from the plurality ofsecond cross lines in number.

The plurality of first electrodes may be spaced apart from the pluralityof pads with the plurality of second electrodes therebetween, and theplurality of first lines may be fewer in number than the plurality ofsecond lines.

The sensor layer may have a first connection area and a secondconnection area; the plurality of first cross electrodes and theplurality of first cross lines may be connected to each other in thefirst connection area; the plurality of second cross electrodes and theplurality of second cross lines may be connected to each other in thesecond connection area; and the first connection area may be closer tothe plurality of pads than the second connection area.

An area of the second connection area may be smaller than an area of thefirst connection area.

The plurality of first cross lines may be greater in. number than theplurality of second cross lines.

A difference in number between the plurality of first lines and theplurality of second lines may be fewer than a difference in numberbetween the plurality of first cross lines and the plurality of secondcross lines.

A first boundary between the plurality of first cross electrodes and theplurality of second cross electrodes may be spaced apart from a firstreference line that passes through a center of the sensing area andextends in the first direction.

A second boundary between the plurality of first electrodes and theplurality of second electrodes may be spaced apart from a secondreference line passing through the center of the sensing area andextending in the second direction.

A distance between the second boundary and the plurality of pads may begreater than a distance between the second reference line and theplurality of pads.

The plurality of pads may be spaced apart from the first reference linein the second direction.

The plurality of pads may include a plurality of first pads and aplurality of second pads which are spaced apart from each other with thefirst reference line therebetween.

The display layer may include a plurality of display pads configured totransmit electrical signals to the display layer, and the plurality ofpads are spaced apart from the plurality of display pads with thesensing area therebetween.

The plurality of pads may be spaced apart from each other along thesecond direction.

The plurality of pads may be spaced apart from each other along adirection between the first direction and the second direction.

The plurality of first cross electrodes may be at least three timesgreater in number than the plurality of second cross electrodes.

A boundary between the sensing area and the peripheral area may have acircle or oval shape.

A first electrode having a maximum length among the plurality of firstelectrodes may have a shorter length than a second electrode having amaximum length among the plurality of second electrodes, and a firstcross electrode having a maximum length among the plurality of firstcross electrodes may have a longer length than a second cross electrodehaving a maximum length among the plurality of second cross electrodes.

An embodiment of the inventive concept provides an electronic deviceincluding: a base layer in which a sensing area and a peripheral areaaround the sensing area are provided; a plurality of electrodes disposedin the sensing area of the base layer; a plurality of cross electrodesdisposed in the sensing area of the base layer and crossing theplurality of electrodes; a plurality of lines disposed in the peripheralarea of the base layer and electrically connected to the plurality ofelectrodes, respectively; and a plurality of cross lines disposed in theperipheral area of the base layer and electrically connected to theplurality of cross electrodes, respectively, wherein the plurality oflines include a plurality of first lines extending along a firstrotation direction and a plurality of second lines extending along asecond rotation direction different from the first rotation direction,the plurality of second lines being provided in a greater number thanthe plurality of first lines, and the plurality of cross lines include aplurality of first cross lines disposed between the sensing area and theplurality of lines, and a plurality of second cross lines spaced apartfrom the sensing area with the plurality of second lines therebetween,the plurality of second cross lines being provided in a fewer numberthan the plurality of first cross lines.

The electronic device may further include a plurality of pads disposedin the peripheral area and electrically connected to the plurality oflines and the plurality of cross lines, respectively; the plurality ofelectrodes may include a plurality of first electrodes electricallyconnected to the plurality of first lines, respectively, and a pluralityof second electrodes electrically connected to the plurality of secondlines, respectively; the plurality of cross electrodes may include aplurality of first cross electrodes electrically connected to theplurality of first cross lines, respectively, and a plurality of secondcross electrodes electrically connected to the plurality of second crosslines, respectively; the plurality of first electrodes and the pluralityof second electrodes may be sequentially arranged along a firstdirection, and the plurality of first cross electrodes and the pluralityof second cross electrodes may be sequentially arranged along a seconddirection crossing the first direction; and the plurality of pads may bespaced apart from the plurality of first electrodes with the pluralityof second electrodes therebetween.

An embodiment of the inventive concept provides an electronic deviceincluding: a display layer configured to display images; and a sensorlayer disposed on the display layer, wherein the sensor layer includes aplurality of electrodes disposed in a sensing area, a plurality of crosselectrodes disposed in the sensing area and crossing the plurality ofelectrodes, a plurality of lines disposed in a peripheral area andelectrically connected to the plurality of electrodes, and a pluralityof cross lines disposed in the peripheral area and electricallyconnected to the plurality of cross electrodes, wherein the plurality oflines include a plurality of first lines and a plurality of second linesspaced apart from each other with the sensing area therebetween andhaving a difference in number, the plurality of cross lines include aplurality of first cross lines and a plurality of second cross linesspaced apart from each other with the sensing area therebetween andhaving a difference in number, and the difference in number between theplurality of first cross lines and the plurality of second cross linesis greater than the difference in number between the plurality of firstlines and the plurality of second lines.

An embodiment of the inventive concept provides an electronic deviceincluding: a sensor layer, the sensor layer including: a plurality offirst electrodes disposed in a sensing area of the sensor layer andextending in a first direction; a plurality of second electrodesdisposed in the sensing area and extending in the first direction,wherein a first boundary is provided between the plurality of firstelectrodes and the plurality of second electrodes, the first boundarybeing separated by a first distance from a first reference lineextending across a center of the sensing area in the first direction; aplurality of first cross electrodes disposed in the sensing area andextending in a second direction intersecting the first direction; and aplurality of second cross electrodes disposed in the sensing area andextending in the second direction, wherein a second boundary is providedbetween the plurality of first cross electrodes and the plurality ofsecond cross electrodes, the second boundary being separated by a seconddistance from a second reference line extending across the center of thesensing area in the second direction, the second distance being greaterthan the first distance.

The electronic. device may further include: a plurality of pads disposedin a peripheral area of the sensor layer; a plurality of first linesdisposed in the peripheral area and connected to the plurality of firstelectrodes at a first side of the sensing area; and a plurality ofsecond lines disposed in the peripheral area and connected to theplurality of second electrodes at a second side of the sensing area,wherein a number of the plurality of first lines and a number of theplurality of second lines are different from each other.

The electronic device may further include: a plurality of first crosslines disposed in the peripheral area and connected to the plurality offirst cross electrodes at the first side of the sensing area; and aplurality of second cross lines disposed in the peripheral area andconnected to the plurality of second cross electrodes at the second sideof the sensing area, wherein a number of the plurality of first crosslines and a number of the plurality of second cross lines are differentfrom each other.

The plurality of second cross electrodes may occupy a smaller area thanthe plurality of first cross electrodes.

The plurality of first electrodes may occupy a smaller area than theplurality of second electrodes.

BRIEF DESCRIPTION OF THE FIGURES

The above and other features of the inventive concept will becomereadily apparent by reference to the following detailed description whenconsidered in conjunction with the accompanying drawings. In thedrawings:

FIG. 1 is an application example of an electronic device according to anembodiment of the inventive concept;

FIG. 2 is an application example of an electronic device according to anembodiment of the inventive concept;

FIG. 3A is a perspective view of an electronic device according to anembodiment of the inventive concept;

FIG. 3B is a cross-sectional view taken along line I-I′ shown in FIG.3A;

FIG. 4A is a perspective view of an electronic device according to anembodiment of the inventive concept;

FIG. 4B is a cross-sectional view taken along line II-II′ shown in FIG.4A;

FIG. 5 is a plan view of a sensor layer according to an embodiment ofthe inventive concept;

FIG. 6 is a cross-sectional view taken along line III-III′ shown in FIG.5;

FIG. 7A is a cross-sectional view taken along line IV-IV′ shown in FIG.5 according to an embodiment of the inventive concept;

FIG. 7B is a cross-sectional view taken along line IV-IV′ shown in FIG.5 according to an embodiment of the inventive concept;

FIG. 7C is a cross-sectional view taken along line IV-IV′ shown in FIG.5 according to an embodiment of the inventive concept;

FIG. 8 is a plan view of a sensor layer according to an embodiment ofthe inventive concept;

FIG. 9 is a plan view of a sensor layer according to an embodiment ofthe inventive concept;

FIG. 10 is a plan view of a sensor layer according to an embodiment ofthe inventive concept;

FIG. 11 is a plan view of a sensor layer according to an embodiment ofthe inventive concept; and

FIG. 12 is a perspective view of an electronic device according to anembodiment of the inventive concept.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In the present description, when an element (or a region, a layer, aportion, etc.) is referred to as being “on,” “connected to,” or “coupledto” another element, it means that the element may be directly disposedon/connected to/coupled to the other element, or that a third elementmay be disposed therebetween.

Like reference numerals may refer to like elements. In addition, in thedrawings, the thickness, the ratio, and the dimensions of elements maybe exaggerated.

It will be understood that, although the terms “first”, “second”, etc.may be used herein to describe various elements, these elements shouldnot be limited by these terms. These terms are only used to distinguishone element from another. For example, a first element could be termed asecond element, and, similarly, a second element could be termed a firstelement. The terms of a singular form may include plural forms unlessthe context clearly indicates otherwise.

In addition, terms such as “below,” “lower,” “above,” “upper,” and thelike are used to describe the relationship of the configurations shownin the drawings. The terms are used as a relative concept and aredescribed with reference to the direction indicated in the drawings.

Hereinafter, embodiments of the inventive concept will be described withreference to the accompanying drawings.

FIG. 1 is an application example of an electronic device according to anembodiment of the inventive concept.

Referring to FIG. 1, an electronic device 1000 may be applied to avehicle 1000CA.

The electronic device 1000 may display images and detect external inputsapplied from the outside. For example, the electronic device 1000 maydisplay various types of information required for driving vehicles, forexample, navigation information, or icons for operating various systemssuch as an air conditioner, a heater, a stereo system, and an aircirculator, or rear views of the vehicle 1000CA. Users may operate theelectronic device 1000 through touch actions.

The electronic device 1000 may have a circular shape and have a size of10 inches or greater. For example, the electronic device 1000 may have asize of 13.5 inches, but is not limited thereto.

FIG. 2 is an application example of an electronic device according to anembodiment of the inventive concept.

Referring to FIG. 2, an electronic device 1000-1 may be applied to awearable device 1000WA.

The electronic device 1000-1 may display information on time andweather, or icons for operating various applications or actions. Usersmay operate the electronic device 1000-1 through touch actions.

FIGS. 1 and 2 illustrate two examples of application to which theelectronic device 1000 or 1000-1 is applied, but they are not limitedthereto.

FIG. 3A is a perspective view of an electronic device according to anembodiment of the inventive concept. FIG. 3B is a cross-sectional viewtaken along line I-I′ shown in FIG. 3A.

Referring to FIGS. 3A and 3B, an active area 1000A and a peripheral area1000N may be provided in the electronic device 1000. The peripheral area1000N may be adjacent to the active area 1000A and surround the activearea 1000A. However, the peripheral area 1000N may be disposed on fewerthan all sides of the active area 1000A.

The electronic device 1000 may display images through the active area1000A and detect inputs applied from the outside. The inputs may be auser's inputs. The user's inputs may include various types of externalinputs such as a part of a user's body, light, heat, pen, or pressure.

The active area 1000A may include a plane formed by a first directionDR1 and a second direction DR2, but is not limited thereto. For example,the active area 1000A may include a curved surface or may include both acurved surface and a plane surface. In the present description, a thirddirection DR3 crossing both the first direction DR1 and the seconddirection DR2 may be referred to as a thickness direction of theelectronic device 1000.

The electronic device 1000 may include a display layer 100 and a sensorlayer 200.

The display layer 100 may be configured to generate images. The displaylayer 100 may be a light emitting display layer, and for example, thedisplay layer 100 may be an organic light emitting display layer, aquantum dot display layer, or a micro light emitting diode (LED) displaylayer. Hereinafter, as an example, the display layer 100 is described asan organic light emitting display layer, but is not limited thereto.

The sensor layer 200 may be disposed on the display layer 100. Thesensor layer 200 may detect external inputs applied from the outside.The external inputs may be a user's inputs. The user's inputs mayinclude various types of external inputs such as a part of a user'sbody, light, heat, pen, or pressure.

The sensor layer 200 may be formed on the display layer 100 through acontinuous process. In this case, the sensor layer 200 may be indicatedas being directly disposed on the display layer 100. Being directlydisposed may indicate that a third component is not disposed between thesensor layer 200 and the display layer 100. In other words, a separateadhesive member may not be disposed between the sensor layer 200 and thedisplay layer 100.

The electronic device 1000 may include display pads 100PD electricallyconnected to the display layer 100 and sensor pads 200PD (hereinafterreferred to as pads) electrically connected to the sensor layer 200. Thedisplay pads 100PD and pads 200PD may be arranged in separate groups.One printed circuit film may be attached to the display pads 100PD andthe pads 200PD, but the inventive concept is not limited thereto. Forexample, a first printed circuit film may be attached to the displaypads 100PD, and a second printed circuit film may be attached to thepads 200PD.

Referring to FIG. 3B, the display layer 100 may include a base layer101, a circuit layer 102, a light emitting element layer 103, and anencapsulation layer 104.

The base layer 101 may be a member providing a base surface on which thecircuit layer 102 is disposed. The base layer 101 may be a glasssubstrate, a metal substrate, or a polymer substrate. However, theembodiment of the inventive concept is not limited thereto, and the baselayer 101 may be an inorganic layer, an organic layer, or a compositematerial layer.

The base layer 101 may have a multilayer structure. For example, thebase layer 101 may include a first synthetic resin layer, a siliconoxide (SiOx) layer disposed on the first synthetic resin layer, anamorphous silicon (a-Si) layer disposed on the silicon oxide layer, anda second synthetic resin layer disposed on the amorphous silicon layer.The silicon oxide layer and the amorphous silicon layer may be referredto as a base barrier layer. Alternatively, the base layer 101 mayinclude a first synthetic resin layer, an adhesive layer, and a secondsynthetic resin layer.

The first and second synthetic resin layers each may include apolyimide-based resin. In addition, the first and second synthetic resinlayers each may include at least one among an acrylic-based resin, amethacrylate-based resin, a polyisoprene-based resin, a vinyl-basedresin, an epoxy-based resin, a urethane-based resin, a cellulose-basedresin, a siloxane-based resin, a polyamide-based resin, and aperylene-based resin. In addition, in the present description, a“˜˜”-based resin indicates that a functional group of “˜˜” is included.

The circuit layer 102 may be disposed on the base layer 101. The circuitlayer 102 may include an insulating layer, a semiconductor pattern, aconductive pattern, and a signal line. The insulating layer, thesemiconductor layer, and the conductive layer are formed on the baselayer 101 through methods such as coating or vapor deposition, and thenthe insulating layer, the semiconductor layer, and the conductive layermay be selectively patterned a plurality of times in a photolithographyprocess. Thereafter, a semiconductor pattern, a conductive pattern, anda signal line included in the circuit layer 102 may be formed.

At least one inorganic layer is formed on an upper surface of the baselayer 101. The inorganic layer may include at least one among aluminumoxide, titanium oxide, silicon oxide, silicon nitride, siliconoxynitride, zirconium oxide, and hafnium oxide. The inorganic layer maybe formed as multiple layers. The multi-layered inorganic layers mayform a barrier layer and/or a buffer layer. In the present embodiment,the display layer 100 is illustrated to include a buffer layer BFL.

The buffer layer BFL may increase the bonding force between the baselayer 101 and the semiconductor pattern. The buffer layer BFL mayinclude a silicon oxide layer and a silicon nitride layer, which may bealternately stacked.

The semiconductor pattern may be disposed on the buffer layer BFL. Thesemiconductor pattern may include polysilicon. However, the embodimentof the inventive concept is not limited thereto, and the semiconductorpattern may include amorphous silicon or metal oxide.

FIG. 3B shows only some semiconductor patterns. For example,semiconductor patterns may be further disposed in other areas. Thesemiconductor pattern may be arranged by specific rules over pixels. Thesemiconductor pattern may have different electrical properties dependingon whether or not it is doped. The semiconductor pattern may include afirst region having a relatively high conductivity and a second regionhaving a relatively low conductivity. The first region may be doped withthe N-type dopant or the P-type dopant. A P-type transistor may includea doped region doped with the P-type dopant, and an N-type transistormay include a doped region doped with the N-type dopant. The secondregion may be a non-doped region or a region doped at a concentrationlower than that of the first region.

The first region may have a conductivity greater than that of the secondregion and the first region may serve as an electrode or signal line.The second region may correspond to an active (or a channel) of thetransistor. In other words, a portion of the semiconductor pattern maybe the active of the transistor, another portion of the semiconductorpattern may be a source or a drain of the transistor, and the otherportion of the semiconductor pattern may be a connection electrode or aconnection signal line.

The pixels each may have an equivalent circuit including seventransistors, one capacitor, and a light emitting element, and theequivalent circuit diagram of the pixels may be modified in variousforms. In FIG. 3B, one transistor 100PC and a light emitting element100PE included in the pixels are illustrated as an example.

A source SC, an active AL, and a drain DR of the transistor 100PC may be(brined from the semiconductor pattern. The source SC and the drain DRmay extend in opposite directions from the active AL on a cross section.FIG. 3B illustrates a portion of a connection signal line SCL formedfrom the semiconductor pattern. The connection signal line SCL may beconnected to the drain DR of the transistor 100PC on a plane

A first insulating layer 10 may be disposed on the buffer layer BFL. Thefirst insulating layer 10 may commonly overlap a plurality of pixels andcover the semiconductor pattern. The first insulating layer 10 may be aninorganic layer and/or an organic layer, and have a single-layer ormulti-layer structure. The first insulating layer 10 may include atleast one among aluminum oxide, titanium oxide, silicon oxide, siliconnitride, silicon oxynitride, zirconium oxide, and hafnium oxide. In thepresent embodiment, the first insulating layer 10 may be asingle-layered silicon oxide layer. Insulating layers of the circuitlayer 102 which will be described later in addition to the firstinsulating layer 10 may be inorganic layers and/or organic layers, andhave single-layer or multi-layer structures. The inorganic layer mayinclude at least one of the materials described above, but is notlimited thereto.

A gate GT of the transistor 100PC is disposed on the first insulatinglayer 10. The gate GT may be a portion of a metal pattern. The gate GToverlaps the active AL. In the process of doping the semiconductorpattern, the gate GT may function as a mask.

A second insulating layer 20 may be disposed on the first insulatinglayer 10 and may cover the gate GT. The second insulating layer 20 maycommonly overlap pixels. The second insulating layer 20 may be aninorganic layer and/or an organic layer, and may have a single-layer ormulti-layer structure. In the present embodiment, the second insulatinglayer 20 may be a single-layered silicon oxide layer or silicon nitridelayer.

A third insulating layer 30 may be disposed on the second insulatinglayer 20, and in the present embodiment, the third insulating layer 30may be a single-layered silicon oxide or silicon nitride.

A first connection electrode CNE1 may be disposed on the thirdinsulating layer 30. The first connection electrode CNE1 may beconnected to the connection signal line SCL through a contact hole CNT-1passing through the first, second, and third insulating layers 10, 20,and 30.

A fourth insulating layer 40 may be disposed on the third insulatinglayer 30. The fourth insulating layer 40 may be a single-layered siliconoxide. A fifth insulating layer 50 may be disposed on the fourthinsulating layer 40. The fifth insulating layer 50 may be an organiclayer.

A second connection electrode CNE2 may be disposed on the fifthinsulating layer 50. The second connection electrode CNE2 may beconnected to the first connection electrode CNE1 through a contact holeCNT-2 passing through the fourth insulating layer 40 and the fifthinsulating layer 50.

A sixth insulating layer 60 may be disposed on the fifth insulatinglayer 50 and may cover the second connection electrode CNE2. The sixthinsulating layer 60 may be an organic layer.

The light emitting element layer 103 may be disposed on the circuitlayer 102. The light emitting element layer 103 may include the lightemitting element 100PE. For example, the light emitting element layer103 may include organic light emitting materials, quantum dots, quantumrods, or micro LEDs. Hereinafter, the light emitting element 100PE isdescribed as an organic light emitting element as an example, but is notlimited thereto.

The light emitting element 100PE may include a first electrode AE, anemission layer EL, and a second electrode CE.

The first electrode AE may be disposed on the sixth insulating layer 60.The first electrode AE may be connected to the second connectionelectrode CNE2 through a contact hole CNT-3 passing through the sixthinsulating layer 60. The first, second and third contact holes CNT-1,CNT-2 and CNT-3 may overlap each other.

A pixel defining film 70 may be disposed on the sixth insulating layer60 and may cover a portion of the first electrode AE. An opening 70-OPis provided in the pixel defining film 70. The opening 70-OP of thepixel defining film 70 exposes at least a portion of the first electrodeAE.

As shown in FIG. 3B, the active area 1000A (see FIG. 3A) may include alight emitting area PXA and a non-light emitting area NPXA adjacent tothe light-emitting area PXA. The non-light-emitting area NPXA maysurround the light-emitting area PXA. In the present embodiment, thelight-emitting area PXA corresponds to a portion of the first electrodeAE exposed through the opening 70-OP. In other words, the portion of thefirst electrode AE exposed through the opening 70-OP is provided in thelight-emitting area PXA.

The emission layer EL may be disposed on the first electrode AE. Theemission layer EL may be disposed in an area corresponding to theopening 70-OP. In other words, the emission layer EL may be separatelyformed on each of the pixels. When the emission layer EL is separatelyformed on each of the pixels, the emission layers EL each may emit lightof at least one color among blue, red, and green. However, theembodiment of the inventive concept is not limited thereto, and theemission layer EL may be connected to the pixels to be commonlyprovided. In this case, the emission layer EL may provide blue light orwhite light.

The second electrode CE may be disposed on the emission layer EL. Thesecond electrode CE may have a single-body shape and may be commonlydisposed in a plurality of pixels.

A hole control layer may be disposed between the first electrode AE andthe emission layer EL. The hole control layer may be commonly disposedin the light-emitting area PXA and the non-light-emitting area NPXA. Thehole control layer may include a hole transport layer, and may furtherinclude a hole injection layer. An electron control layer may bedisposed between the emission layer EL and the second electrode CE. Theelectron control layer may include an electron transport layer, and mayfurther include an electron injection layer. The hole control layer andthe electron control layer may be commonly formed in a plurality ofpixels using an open mask.

The encapsulation layer 104 may be disposed on the light emittingelement layer 103. The encapsulation layer 104 may include an inorganiclayer, an organic layer, and an inorganic layer which are sequentiallystacked, but the layers forming the encapsulation layer 104 are notlimited thereto.

The inorganic layers of the encapsulation layer 104 may protect thelight emitting element layer 103 from moisture and oxygen, and theorganic layer may protect the light emitting element layer 103 fromforeign substances such as dust particles. The inorganic layers mayinclude a silicon nitride layer, a silicon oxy nitride layer, a siliconoxide layer, a titanium oxide layer, or an aluminum oxide layer. Theorganic layer of the encapsulation layer 104 may include anacrylic-based organic layer, but is not limited thereto.

The sensor layer 200 may include a base layer 201, a first conductivelayer 202, a sensing insulating layer 203, a second conductive layer204, and a cover insulating layer 205.

The base layer 201 may be an inorganic layer including at least any oneamong silicon nitride, silicon oxynitride, and silicon oxide.Alternatively, the base layer 201 may be an organic layer including anepoxy resin, an acrylic resin, or an imide-based resin. The base layer201 may have a single layer structure or may have a multilayer structurestacked along the third direction DR3.

The first conductive layer 202 and the second conductive layer 204 eachmay have a single layer structure or may have a multilayer structurestacked along the third direction DR3. A conductive pattern included inthe first conductive layer 202 and a conductive pattern included in thesecond conductive layer 204 may be connected to each other through anopening in the sensing insulating layer 203.

The single-layered conductive layer of the first conductive layer 202and the second conductive layer 204 may include a metal layer or atransparent conductive layer. The metal layer may include molybdenum,silver, titanium, copper, aluminum, or an alloy thereof. The transparentconductive layer may include a transparent conductive oxide such asindium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), orindium tin zinc oxide (ITZO). In addition, the transparent conductivelayer may include a conductive polymer such as PEDOT, a metal nanowire,graphene, etc.

The conductive layer of the first conductive layer 202 and the secondconductive layer 204 having a multi-layered structure may include metallayers. The metal layers may have a three-layer structure of, forexample, titanium/aluminum/titanium. The multi-layered conductive layermay include at least one metal layer and at least one transparentconductive layer.

When the first conductive layer 202 and the second conductive layer 204include a metal layer, the first conductive layer 202 and the secondconductive layer 204 may be opaque. Accordingly, the first conductivelayer 202 and the second conductive layer 204 may be patterned tonon-overlap the light emitting area PXA.

At least any one of the sensing insulating layer 203 or the coverinsulating layer 205 may include an inorganic layer. The inorganic layermay include at least one among aluminum oxide, titanium oxide, siliconoxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafniumoxide.

At least any one of the sensing insulating layer 203 or the coverinsulating layer 205 may include an organic layer. The organic layer mayinclude at least any one among an acrylic-based resin, amethacrylate-based resin, polyisoprene, a vinyl-based resin, anepoxy-based resin, a urethane-based. resin, a cellulose-based resin, asiloxane-based resin, a polyimide-based resin, a polyamide-based resin,or a perylene-based resin.

FIG. 4A is a perspective view of an electronic device according to anembodiment of the inventive concept. FIG. 4B is a cross-sectional viewtaken along line II-II′ shown in FIG. 4A.

Referring to FIGS. 4A and 4B, an electronic device 1000_1 may include afirst substrate 1001 and a second substrate 2001. The first substrate100_1 may be referred to as a display layer, and the second substrate2001 may be referred to as a sensor layer.

The first substrate 100_1 and the second substrate 200_1 may be bondedto each other through a bonding member. For example, the bonding membermay be disposed between the first substrate 100_1 and the secondsubstrate 200_1 and may be disposed in the peripheral area 1000N. Thebonding member may include an inorganic material or an organic material.For example, the inorganic material may include a frit seal, and theorganic material may include a photocurable resin or a photoplasticresin. However, the material forming the bonding member is not limitedto the examples described above.

The first substrate 100_1 may include a base layer 101, a circuit layer102, and a light emitting element layer 103. The descriptions of thebase layer 101, the circuit layer 102, and the light emitting elementlayer 103 are previously provided with reference to FIGS. 3A and 3B, andthus will be omitted.

The second substrate 200_1 may include a base substrate 201_1, a firstconductive layer 202_1, a sensing insulating layer 203_1, a secondconductive layer 204_1, and a cover insulating layer 205_1.

The base substrate 201_1 may be a glass substrate, a metal substrate, ora polymer substrate. However, the embodiment of the inventive concept isnot limited thereto, and the base substrate 200_1 may be an inorganiclayer, an organic layer, or a composite material layer.

The first conductive layer 202_1 and the second conductive layer 204_1each may have a single layer structure or may have a multilayerstructure stacked along the third direction DR3. The first conductivelayer 202_1 and the second conductive layer 204_1 each may include ametal layer or a transparent conductive layer. For example, the secondconductive layer 204_1 may include a transparent conductive layer. Inthis case, the second conductive layer 204_1 may overlap the lightemitting area PXA.

In an embodiment of the inventive concept, at least one insulating layermay be further disposed between the base substrate 201_1 and the firstconductive layer 202 1. The at least one insulating layer may bedirectly formed on the base substrate 201_1 or may be bonded to the basesubstrate 201_1 through an adhesive layer. The adhesive layer mayinclude an adhesive or a gluing agent.

The first substrate 100_1 may include display pads 100PD_1, and thesecond substrate 200_1 may include sensor pads 200PD_1 (hereinafter,referred to as pads). The first printed circuit film may be attached todisplay pads 100PD_1, and the second printed circuit film may beattached to pads 200PD_1. The display pads 100PD_1 may protrude beyondthe pads 200PD_1 in the first direction DR1.

The display pads 100PD_1 may be electrically connected to the circuitlayer 102 to provide signals to the circuit layer 102. The sensor pads200PD_1 may be electrically connected to the first conductive layer202_1 and the second conductive layer 204_1 to provide signals to thefirst conductive layer 202_1 and the second conductive layer 204_1, ormay receive signals from the first conductive layer 202_1 and the secondconductive layer 204_1.

FIG. 5 is a plan view of a sensor layer according to an embodiment ofthe inventive concept.

Referring to FIG. 5, a sensing area 200A and a peripheral area 200N maybe provided in the sensor layer 200. The sensing area 200A is an areafor detecting external inputs and may correspond to the active area1000A of FIG. 3A. The peripheral area 200N is disposed around thesensing area 200A, and may correspond to the peripheral area 1000N ofFIG. 3A.

A boundary 200BD between the sensing area 200A and the peripheral area200N may be a circle. However, the boundary 200BD may have a differentshape depending on a shape of the sensing area 200A, for example. Acenter 200CP of the sensing area 200A may correspond to the center ofthe boundary 200BD. A first reference line 200RL1 may extend along thefirst direction DR1 and pass through the center 200CP. A secondreference line 200RL2 may extend along the second direction DR2 and passthrough the center 200CP.

The sensor layer 200 may include a plurality of electrodes 210(hereinafter referred to as electrodes), a plurality of cross electrodes220 (hereinafter referred to as cross electrodes), a plurality of lines231 and 232 (hereinafter referred to as lines), a plurality of crosslines 241 and 242 (hereinafter referred to as cross lines), and aplurality of pads 200PD (hereinafter referred to as pads).

The electrodes 210 and the cross electrodes 220 may be disposed in thesensing area 200A, and the lines 231 and 232, the cross lines 241 and242, and the pads 200PD may be disposed in the peripheral area 200N.However, connection points between, for example, the cross electrodes220 and the cross lines 241 and 242 may be in the sensing area 200A. Theelectronic device 1000 (see FIG. 3A) may obtain information ofcoordinates on external inputs through changes in mutual capacitancebetween the electrodes 210 and the cross electrodes 220.

The electrodes 210 may be spaced apart in the first direction DR1. Thecross electrodes 220 may be spaced apart in the second direction DR2,crossing the first direction DR1. The electrodes 210 each may extend.along the second direction DR2, and the cross electrodes 220 each mayextend along the first direction DR1. The electrodes 210 and the crosselectrodes 220 may cross each other. In the descriptions below, thelength of each of the electrodes 210 may refer to a length in the seconddirection DR2, and the length of each of the cross electrodes 220 mayrefer to a length in the first direction DR1.

The boundary 200BD between the sensing area 200A and the peripheral area200N is a circle, and the electrodes 210 each may thus have variouslengths, and the cross electrodes 220 each may thus have variouslengths. The length varies, and resistances of the electrodes 210 andthe cross electrodes 220 may thus be different from each other, and thatmay cause a difference in sensing sensitivity. For example, theelectrodes 210 located at an upper portion of the sensor layer 200 farfrom the pads 200PD may have a lower sensing sensitivity than theelectrodes 210 located at a lower portion of the sensor layer 200 closeto the pads 200PD. According to an embodiment of the inventive concept,the positions of the lines 231 and 232 connected to the electrodes 210and the cross lines 241 and 242 connected to the cross electrodes 220may be controlled to reduce a difference in sensitivity. This will bedescribed in detail below.

The electrodes 210 may include first electrodes 210 a and secondelectrodes 210 b. The first electrodes 210 a and the second electrodes210 b may be arranged along the first direction DR1. The crosselectrodes 220 may include first cross electrodes 220 a and second crosselectrodes 220 b. The first cross electrodes 220 a and the second crosselectrodes 220 b may be arranged along the second direction DR2.

In FIG. 5, the first electrodes 210 a and the second electrodes 210 bare illustrated in different shades to clarify the distinction, and thefirst cross electrodes 220 a and the second cross electrodes 220 b areillustrated using different hatchings to clarify the distinction.

FIG. 5 illustrates as an example that the number of first electrodes 210a is three, the number of second electrodes 210 b is five, the number offirst cross electrodes 220 a is six, and the number of second electrodes220 b is two, but the embodiment of the inventive concept is not limitedthereto. With an increase in an area of the sensing area 200A, thenumber of each of the first electrodes 210 a, the second electrodes 210b, the first cross electrodes 220 a, and the second cross electrodes 220b may increase or decrease.

In FIG. 5, the six first cross electrodes 220 a are sequentiallyarranged along the second direction DR2 from the left to the right, andthe two second cross electrodes 220 b are arranged at the right side ofthe six first cross electrodes 220 a.

The lines 231 and 232 may be electrically connected to the electrodes210, respectively. The cross lines 241 and 242 may be electricallyconnected to the cross electrodes 220, respectively. The lines 231 and232 may include first lines 231 and second lines 232. The cross lines241 and 242 may include first cross lines 241 and second cross lines242. The first lines 231 may be electrically connected to the firstelectrodes 210 a, respectively, and the second lines 232 may beelectrically connected to the second electrodes 210 b, respectively. Thefirst cross lines 241 may be electrically connected to the first crosselectrodes 220 a, respectively, and the second cross lines 242 may beelectrically connected to the second cross electrodes 220 b,respectively.

The first lines 231 and the second lines 232 may be spaced apart fromeach other with the sensing area 200A therebetween, and the first crosslines 241 and the second cross lines 242 may be spaced apart from eachother with the sensing area 200A therebetween. For example, the firstlines 231 and the second lines 232 may be disposed at different sides ofthe sensing area 200A and the first cross lines 241 and the second crosslines 242 may be disposed at different sides of the sensing area 200A.

The electrodes 210 each may include a first end and a second end spacedapart from the first end in the second direction DR2. Electrodesrespectively connected to the first lines 231 at the first end among theelectrodes 210 may be the first electrodes 210 a, and electrodesrespectively connected to the second lines 232 at the second end amongthe electrodes 210 may be the second electrodes 210 b. In addition, thecross electrodes 220 each may include a third end and a fourth endspaced apart from the third end in the first direction DR1. Crosselectrodes respectively connected to the first cross lines 241 at thethird end among the cross electrodes 220 may the first cross electrodes220 a, and cross electrodes respectively connected to the second crosslines 242 at the fourth end among the cross electrodes 220 may be thesecond cross electrodes 220 b.

The first lines 231 may extend along a first rotation direction RD1 fromthe first electrodes 210 a towards the pads 200PD. The second lines 232may extend along a second rotation direction RD2 from the secondelectrodes 210 b towards the pads 200PD. The first cross lines 241 mayextend along the first rotation direction RD1 from the first crosselectrodes 220 a towards the pads 200PD. The second cross lines 242 mayextend along the second rotation direction RD2 from the second crosselectrodes 220 b towards the pads 200PD. The first and second rotationdirections RD1 and RD2 may be opposite each other.

The first cross lines 241 may be disposed between the boundary 200BD andthe first lines 231, and the second lines 232 may be disposed betweenthe boundary 200BD and the second cross lines 242. The lengths of thefirst lines 231 may be greater than the lengths of the first cross lines241, and the lengths of the second cross lines 242 may be greater thanthe lengths of the second lines 232. For example, the first lines 231may be connected to the first electrodes 210 a far from the pads 200PDand the first cross lines 241 may be connected to the first crosselectrodes 220 a close to the pads 200PD.

A first boundary 220BD may be between the first cross electrodes 220 aand the second cross electrodes 220 b, and a second boundary 210BD maybe between the first electrodes 210 a and the second electrodes 210 b.The first boundary 220BD may extend along the first direction DR1, andthe second boundary 210BD may extend along the second direction DR2. Thefirst boundary 220BD may be spaced apart from the first reference line200RL1 along the second direction DR2, and the second boundary 210BD maybe spaced apart from the second reference line 200RL2 along the firstdirection DR1. The distance between the second boundary 210BD and theplurality of pads 200PD may be greater than the distance between thesecond reference line 200RL2 and the plurality of pads 200PD. Thedistance between the second boundary 210BD and the second reference line200RL2 may correspond to a width in the first direction DR1 of thesecond electrodes 210 b.

The first electrodes 210 a may be spaced apart from the pads 200PD withthe second electrodes 210 b therebetween. A first connection area 220CA1and a second connection area 220CA2 may be provided in the sensor layer200. The first connection area 220CA1 may be an area in which the firstcross electrodes 220 a are in contact with a portion of the first crosslines 241, and the second connection area 220CA2 may be an area in whichthe second cross electrodes 220 b are in contact with a portion of thesecond cross lines 242. The first connection area 220CA1 may bepositioned closer to the pads 200PD than the second connection area220CA2.

According to an embodiment of the inventive concept, the first lines 231and the second lines 232 may be different in number from each other. Inaddition, the first cross lines 241 and the second cross lines 242 maybe different in number from each other. Accordingly, the firstelectrodes 210 a connected to the first lines 231 and the secondelectrodes 210 b connected to the second lines 232 may be different innumber from each other, and the first cross electrodes 220 a connectedto the first cross lines 241 and the second cross electrodes 220 bconnected to the second cross lines 242 may be different in number fromeach other.

Each of the first lines 231 may have a longer length than each of thesecond lines 232, and each of the first cross lines 241 may have ashorter length than each of the second cross lines 242. The first lines231 may be fewer in number than the second lines 232. For example, inFIG. 5, three first lines 231 and four second lines 232 are shown;however, the inventive concept is not limited thereto. In addition, thefirst cross lines 241 may be greater in number than the second crosslines 242. For example, in FIG. 5, six first cross lines 241 and twosecond cross lines 242 are shown; however, the inventive concept is notlimited thereto. Accordingly, the first connection area 220CA1 may begreater in size than the second connection area 220CA2.

According to an embodiment of the inventive concept, the second lines232 and the first cross lines 241 having a relatively shorter length maybe greater in number than the first lines 231 and the second cross lines242 having a relatively longer length. The first electrodes 210 aelectrically connected to the first lines 231 may have a shorter lengththan the second electrode 210M having the longest length among thesecond electrodes 210 b. In addition, the second cross electrodes 220 belectrically connected to the second cross lines 242, respectively, mayhave a shorter length than the first cross electrode 220M having thelongest length among the first cross electrodes 220 a.

In a comparative example in which the first boundary 220BD and thesecond boundary 210BD pass through the center 200CP, the firstelectrodes and the second electrodes may be the same in number, and thefirst cross electrodes and the second cross electrodes may be the samein number. In this case, at least one of the cross electrodes 220Mhaving the maximum length may be electrically connected to a cross linehaving the maximum length. In this case, the resistance of the crosselectrode and the cross line is assumed to be 100. In the embodiment ofthe inventive concept shown in FIG. 5, for example, when the first crosselectrodes 220 a and the second cross electrodes 220 b are configured tobe different in number, a cross electrode having the maximum lengthconnected to the cross line 242M is not a cross electrode 220M havingthe maximum length. For example, the cross electrode having the maximumlength connected to the cross line 242M may have fewer sensing patternsthan the cross electrode 220M having the maximum length. In this case,values for the maximum resistance of the cross line having the maximumlength and the cross electrode connected thereto may be reduced by about20% compared to those in comparative example.

With a decrease in values for the maximum resistance, frequencybandwidths enabling the operation of the sensor layer 200 may increase.For example, the frequency bandwidth according to comparative examplemay be 125 Hz, and the frequency bandwidth according to an embodiment ofthe inventive concept may be 137 Hz. When frequencies for operating thesensing layer 200 are required to be changed to prevent a decrease insensing sensitivity due to external noise, the performance of the sensorlayer 200 may be secured when frequency bandwidths for the operation isgreater.

According to an embodiment of the inventive concept, the line having themaximum length may not be connected to the electrode having the maximumlength. Accordingly, values for the maximum resistance of the electrodeand the line may be reduced compared to those in comparative exampledescribed above, and the resistance deviation in the sensor layer 200may be reduced. As a result, the sensor layer 200 may have increasedsensing sensitivity.

According to an embodiment of the inventive concept, the electrode 210Mhaving the maximum length among the electrodes 210 is electricallyconnected to one of the second lines 232 having a relatively shorterlength than the first lines 231. In addition, the cross electrode 220Mhaving the maximum length among the cross electrodes 220 may beelectrically connected to one of the first cross lines 241 having arelatively shorter length than the second cross lines 242.

According to an embodiment of the inventive concept, a difference inlength between the first line 231M having the maximum length among thefirst lines 231 and the second line 232M having the maximum length amongthe second lines 232 is greater than a difference in length between thefirst cross line 241M having the maximum length among the first crosslines 241 and the second cross line 242M having the maximum length amongthe second cross lines 242. Accordingly, the first boundary 220BD withrespect to the center 200CP may have a greater shift than the secondboundary 210BD with respect to the center 200CP. In other words, thefirst boundary 220BD may be farther from the center 200CP along thesecond direction DR2 than the second boundary 210BD is from the center200CP along the first direction DR1.

A difference in number between the first lines 231 and the second lines232 may be smaller than a difference in number between the firstcrossing lines 241 and the second crossing lines 242. Therefore, adifference in number between the first electrodes 210 a and the secondelectrodes 210 b may be smaller than a difference in number between thefirst cross electrodes 220 a and the second cross electrodes 220 b. Thefirst cross electrodes 220 a may be three times or greater in numberthan the second cross electrodes 220 b. For example, when the number ofsecond cross electrodes 220 b is 11, the number of first crosselectrodes 220 a may be 33.

The first electrodes 210 a and the second electrodes 210 b each mayinclude a first portion 211 and a second portion 212. The first crosselectrodes 220 a and the second cross electrodes 220 b each may includea sensing pattern 221 and a bridge pattern 222. A first portion 211 maybe a portion of the first electrodes 210 a facing the sensing pattern221, and the second portion 212 may be a portion of the first electrodes210 a insulatively crossing the bridge pattern 222. When viewed on aplane, the second portion 212 may cross the bridge pattern 222.

The pads 200PD may be spaced apart from each other along the seconddirection DR2. The pads 200PD may be spaced apart from the firstreference line 200RL1 in the second direction DR2. For example, an areain which the pads 200PD are disposed may be spaced apart from the firstreference line 200RL1 in the same direction as the first boundary 220BD.In this case, the length of the cross line to reduce resistance may beshorter. For example, when the pads 200PD are shifted to be adjacent tothe first boundary 220BD, the lengths of the second cross lines 242 maybe shorter.

In FIG. 5, all of the pads 200PD are arranged in the right section ofthe first reference line 200RL1 as an example, but the embodiment of theinventive concept is not limited thereto. For example, all of the pads200PD may be disposed in the left section of the first reference line200RL1, or some of the pads 200PD may be disposed in the left section ofthe first reference line 200RL1, and another portion of the pads 200PDmay be disposed in the right section of the first reference line 200RL1.In this case, some of the pads 200PD disposed on a first side of thefirst reference lines 200RL1 and the other pads 200PD disposed on asecond side of the first reference lines 200RL1 may be different innumber from each other.

An embodiment of the inventive concept provides an electronic device1000 including: a display layer 100 configured to display images; and asensor layer 200 disposed on the display layer 100. The sensor layer 200may include: a plurality of first electrodes 210 a disposed in a sensingarea 200A of the sensor layer 200, arranged along a first direction DR1,and having different lengths; a plurality of second electrodes 210 bdisposed in the sensing area 200A and arranged along the first directionDR1; a plurality of first cross electrodes 220 a disposed in the sensingarea 200A and arranged along a second direction DR2 crossing the firstdirection DR1; a plurality of second cross electrodes 220 b disposed inthe sensing area 200A, arranged along the second direction DR2, andhaving different lengths; and a plurality of pads 200PD disposed in aperipheral area 200N of the sensor layer 200. The sensor layer 200 mayfurther include: a plurality of first lines 231 extended from theplurality of first electrodes 210 a at a first side of the sensing area200A towards the plurality of pads 200PD; a plurality of second lines232 extended from the plurality of second electrodes 210 b at a secondside of the sensing area 200A, which is different from the first side,towards the plurality of pads 200PD; a plurality of first cross lines241 extending from the plurality of first cross electrodes 220 a towardsthe plurality of pads 200PA; and a plurality of second cross lines 242extending from the plurality of second cross electrodes 220 b towardsthe plurality of pads 200PD. The plurality of first lines 231 may bedifferent from the plurality of second lines 232 in number, and theplurality of first cross lines 241 may be different from the pluralityof second cross lines 242 in number.

FIG. 6 is a cross-sectional view taken along line III-III′ shown in FIG.5.

Referring to FIG. 6, the bridge pattern 222 may be disposed between thebase layer 201 and the sensing insulating layer 203. In other words, thebridge pattern 222 may be included in the first conductive layer 202(see FIG. 3B).

The sensing pattern 221, the first portion 211, and the second portion212 (see FIG. 5) may be disposed between the sensing insulating layer203 and the cover insulating layer 205. In other words, the sensingpattern 221, the first portion 211, and the second portion 212 (see FIG.5) may be included in the second conductive layer 204 (see FIG. 3B).

The sensing pattern 221 may pass through the sensing insulating layer203 and electrically contact the bridge pattern 222. The first portion211 may be spaced apart from the bridge pattern 222 with the sensinginsulating layer 203 therebetween, and the first portion 211 mayinsulatively cross the bridge pattern 222.

FIG. 7A is a cross-sectional view taken along line IV-IV′ shown in FIG.5 according to an embodiment of the inventive concept.

Referring to FIGS. 5 and 7A, second lines 232 and second cross lines 242are illustrated. The second lines 232 and the second cross lines 242 maybe disposed between the base layer 201 and the sensing insulating layer203. In other words, the second lines 232 and the second cross lines 242may be included in the first conductive layer 202 (see FIG. 3B).

FIG. 7B is a cross-sectional view taken along line IV-IV′ shown in FIG.5 according to an embodiment of the inventive concept.

Referring to FIGS. 5 and 7B, second lines 232 a, 232 b, and 232 c, andsecond cross lines 242 a and 242 b are illustrated. The widths of thesecond lines 232 and the second cross lines 242 of FIG. 7A may besubstantially the same, but the widths of the second lines 232 a, 232 b,232 c and the second cross lines 242 a and 242 b of FIG. 7B may bedifferent from each other.

For example, a width WT2 of the second cross line 242 b having thelongest length may be greater than a width WT1 of the second line 232 a.Accordingly, the resistance of the second cross line 242 b may bereduced compared to a case where the width WT2 of the second cross line242 b is the same as the width WT1 of the second line 232 a.

FIG. 7C is a cross-sectional view taken along line IV-IV′ shown in FIG.5 according to an embodiment of the inventive concept.

Referring to FIGS. 5 and 7C, second lines 232 and second cross lines 242a 1 and 242 a 2 are illustrated. The second lines 232 may be the same asthe second lines 232 described above in FIG. 7A. The second cross line242 a 1 may include a first line pattern 242 a 11 and a second linepattern 242 a 12, and the second cross line 242 a 2 may include a firstline pattern 242 a 21 and a second line pattern 242 a 22. Second crosslines 242 a 1 and 242 a 2 having a relatively longer length are formedusing two conductive layers, for example, the first conductive layer 202(see FIG. 3B) and the second conductive layer 204 (see FIG. 3B), andresistance may thus be reduced.

The first line pattern 242 a 11 and the second line pattern 242 a 12 maybe electrically connected to each other through the sensing insulatinglayer 203, and the first line pattern 242 a 21 and the second linepattern 242 a 22 may be electrically connected to each other through thesensing insulating layer 203. In addition, the width of the second linepattern 242 a 22 may be greater than the width of the second linepattern 242 a 12; however, the width of the second line pattern 242 a 22and the second line patter 242 a 12 may be the same.

In FIGS. 7A, 7B, and 7C, the second lines and the second cross lines areillustrated as examples, but the above descriptions may be applied tothe first lines and the first cross lines.

FIG. 8 is a plan view of a sensor layer according to an embodiment ofthe inventive concept. In the description of FIG. 8, the same referencenumerals are given for the same content as those described in FIG. 5,and descriptions thereof will be omitted.

Referring to FIG. 8, a sensor layer 200-1 may include pads 200PD_1. Thepositions of the pads 200PD_1 are different from the positions of thepads 200PD of the sensor layer 200 illustrated in FIG. 5. For example,the pads 200PD_1 may include first pads 200PD_1 a and second pads200PD_2 a. The first pads 200PD_1 a and the second pads 200PD_2 a may bespaced apart from each other with the first reference line 200RL1therebetween. Display pads may be disposed between the first pads200PD_1 a and the second pads 200PD_2 a.

The second pads 200PD_2 a are spaced apart from the first reference line200RL1 in the second direction DR2, and the second cross lines 242 maythus have a shorter length compared to a case where the second pads200PD_2 a are disposed closer to the first reference line 200RL1. Inaddition, the first pads 200PD_1 a are spaced apart from the firstreference line 200RL1 in a direction opposite to the second directionDR2, and the first lines 231 may thus have a shorter length compared toa case where the first pads 200PD_1 a are disposed closer to the firstreference line 200RL1.

FIG. 9 is a plan view of a sensor layer according to an embodiment ofthe inventive concept.

Referring to FIG. 9, a sensing area 200A-1 of the sensor layer 200-2 mayhave a shape rotated by about 45 degrees in a counterclockwise directionas compared to the sensing area 200A of the sensor layer 200-2 shown inFIG. 5. The rotated angle and the rotation direction are merelypresented as an example, and are not limited thereto.

For example, in the sensing area 200A-1 of the sensor layer 200-2, firstelectrodes 210 a 1, second electrodes 210 b 1, first cross electrodes220 a 1, and second cross electrodes 220 b 1 may be disposed. The firstelectrodes 210 a 1 and the second electrodes 210 b 1 may be arrangedalong a first cross direction DR1 a, and the first electrodes 210 a 1and the second electrodes 210 b 1 each may extend in a second crossdirection DR2 a. The first cross electrodes 220 a 1 and the second crosselectrodes 220 b 1 may be arranged along the second cross direction DR2a, and the first cross electrodes 220 a 1 and the second crosselectrodes 220 b 1 each may extend along the first cross direction DR1a. The sensor layer 200-2 may further include first lines 231-1, secondlines 232-1, first cross lines 241-1, and second cross lines 242-1.

The first cross direction DR1 a may be a direction between the firstdirection DR1 and the second direction DR2, and the second crossdirection DR2 a may be a direction crossing the first cross directionDR1 a, and be a direction perpendicular to the first cross direction DR1a.

A first reference line 200RL1-1 may extend along the first crossdirection DR1 a and pass through the center 200CP. A second referenceline 200RL2-1 may extend along the second cross direction DR2 a and passthrough the center 200CP.

A first boundary 220BD-1 may be located between the first crosselectrodes 220 a 1 and the second cross electrodes 220 b 1, and a secondboundary 210BD-1 may be located between the first electrodes 210 a 1 andthe second electrodes 210 b 1. The first boundary 220BD-1 may extendalong the first cross direction DR1 a, and the second boundary 210BD-1may extend along the second cross direction DR2 a. The first boundary220BD-1 may be spaced apart from the first reference line 200RL1-1, andthe second boundary 210BD-1 may be spaced apart from the secondreference line 200RL2-1. Although the distance between the firstboundary 220BD-1 and the first reference line 200RL1-1 is greater than adistance between the second boundary 210BD-1 and the second referenceline 200RL2-1, the inventive concept is not limited thereto and thedistance between the first boundary 220BD-1 and the first reference line200RL1-1 may be less than or the same as the distance between the secondboundary 210BD-1 and the second reference line 200RL2-1.

According to an embodiment of the inventive concept, to reduce theresistance deviation in the sensor layer 200-2, the sensor layer 200-2may be configured such that the line having the maximum length is notconnected to the electrode having the maximum length, and the cross linehaving the maximum length is not connected to the cross line electrodehaving the maximum length. Accordingly, the sensing sensitivity of thesensor layer 200-2 having reduced maximum resistance values may beincreased.

FIG. 10 is a plan view of a sensor layer according to an embodiment ofthe inventive concept.

Referring to FIG. 10, a sensing area 200A-2 and a peripheral area 200N-2may be provided in the sensor layer 200-3. A boundary 200BD-2 betweenthe sensing area 200A-2 and the peripheral area 200N-2 may have an ovalshape.

The sensor layer 200-3 may include first electrodes 210 a 2, secondelectrodes 210 b 2, first cross electrodes 220 a 2, and second crosselectrodes 220 b 2 disposed in the sensing area 200A-2. The firstelectrodes 210 a 2 may be fewer in number than the second electrodes 210b 2, and the first cross electrodes 220 a 2 may be greater in numberthan the second cross electrodes 220 b 2.

The sensor layer 200-3 may further include first lines 231-2, secondlines 232-2, first cross lines 241-2, second cross lines 242-2 and firstand second boundaries 210BD-2 and 220BD-2.

According to an embodiment of the inventive concept, to reduce theresistance deviation in the sensor layer 200-3, the sensor layer 200-3may be configured such that the line having the maximum length is notconnected to the electrode having the maximum length, and the cross linehaving the maximum length is not connected to the cross line electrodehaving the maximum length. Accordingly, the sensing sensitivity of thesensor layer 200-3 having reduced maximum resistance values may beincreased.

FIG. 11 is a plan view of a sensor layer according to an embodiment ofthe inventive concept.

Referring to FIG. 11, a sensing area 200A-3 and a peripheral area 200N-3may be defined in a sensor layer 200-4. A boundary 200BD-3 between thesensing area 200A-3 and the peripheral area 200N-3 may have a rhombusshape.

The sensor layer 200-4 may include first electrodes 210 a 3, secondelectrodes 210 b 3, first cross electrodes 220 a 3, and second crosselectrodes 220 b 3 disposed in the sensing area 200A-3. The firstelectrodes 210 a 3 and the second electrodes 210 b 3 may be different innumber from each other, and the first cross electrodes 220 a 3 and thesecond cross electrodes 220 b 3 may be different in number from eachother. For example, the first electrodes 210 a 3 may be fewer in numberthan the second electrodes 210 b 3, and the first cross electrodes 220 a3 may be greater in number than the second cross electrodes 220 b 3.

The sensor layer 200-4 may farther include first lines 231-3, secondlines 232-3, first cross lines 241-3, second cross lines 242-3 and firstand second boundaries 210BD-3 and 220BD-3.

According to an embodiment of the present disclosure, to reduce theresistance deviation in the sensor layer 200-4, the sensor layer 200-4may be configured such that the line having the maximum length is notconnected to the electrode having the maximum length, and the cross linehaving the maximum length is not connected to the cross line electrodehaving the maximum length. Accordingly, the sensing sensitivity of thesensor layer 200-4 having reduced maximum resistance values may beincreased.

FIG. 12 is a perspective view of an electronic device according to anembodiment of the inventive concept.

Referring to FIG. 12, the display pads 100PD_2 and the pads 200PD_2 ofthe electronic device 1000_2 may be spaced apart from each other withthe active area 1000A therebetween. In other words, an area in which thedisplay pads 100PD_2 are disposed and an area in which the pads 200PD_2are disposed may be separated. In this case, the degree of freedom inconfiguring the positions of the pads 200PD_2 may be increased comparedto a case where the pads 200PD_2 are disposed in an area adjacent to thedisplay pads 100PD_2. Therefore, the positions of the pads 200PD_2 maybe easily controlled to reduce values for maximum resistance in thesensor layer.

As described above, an electronic device may include electrodes, crosselectrodes, first and second lines electrically connected to theelectrodes, respectively, and first and second cross lines electricallyconnected to the cross electrodes, respectively. Each of the secondlines may have a shorter length than each of the first lines, and thesecond lines may be greater in number than the first lines. In addition,each of the second cross lines may have a longer length than each of thefirst cross lines, and the second cross lines may be fewer in numberthan the first cross lines. Accordingly, the electrodes connected to thefirst lines may have a shorter maximum length than the electrodesconnected to the second lines, and the cross electrodes connected to thesecond cross lines may have a shorter maximum length than the crosselectrodes connected to the first cross lines. In other words, anelectrode or cross electrode having the maximum length may not beconnected to a line or cross line having the maximum length. Therefore,values for maximum resistance in the sensor layer may be reduced, andresistance deviation in the sensor layer may be reduced. As a result,the sensor layer may have increased sensing sensitivity.

Although the inventive concept has been described with reference toembodiments of the inventive concept, it will be understood that theinventive concept should not be limited to these embodiments but variouschanges and modifications can be made by those skilled in the artwithout departing from the spirit and scope of the inventive concept.

What is claimed is:
 1. An electronic device, comprising: a display layerconfigured to display images; and a sensor layer disposed on the displaylayer, wherein the sensor layer comprises: a plurality of firstelectrodes disposed in a sensing area of the sensor layer, arrangedalong a first direction, and having different lengths; a plurality ofsecond electrodes disposed in the sensing area and arranged along thefirst direction; a plurality of first cross electrodes disposed in thesensing area and arranged along a second direction crossing the firstdirection; a plurality of second cross electrodes disposed in thesensing area, arranged along the second direction, and having differentlengths; a plurality of pads disposed in a peripheral area of the sensorlayer; a plurality of first lines extended from the plurality of firstelectrodes at a first side of the sensing area towards the plurality ofpads; a plurality of second lines extended from the plurality of secondelectrodes at a second side of the sensing area, which is different fromthe first side, towards the plurality of pads; a plurality of firstcross lines extending from the plurality of first cross electrodestowards the plurality of pads; and a plurality of second cross linesextending from the plurality of second cross electrodes towards theplurality of pads, the plurality of first lines being different from theplurality of second lines in number, and the plurality of first crosslines being different from the plurality of second cross lines innumber.
 2. The electronic device of claim 1, wherein the plurality offirst electrodes are spaced apart from the plurality of pads with theplurality of second electrodes therebetween, and the plurality of firstlines are fewer in number than the plurality of second lines.
 3. Theelectronic device of claim 1, wherein: the sensor layer has a firstconnection area and a second connection area; the plurality of firstcross electrodes and the plurality of first cross lines are connected toeach other in the first connection area; the plurality of second crosselectrodes and the plurality of second cross lines are connected to eachother in the second connection area; and the first connection area iscloser to the plurality of pads than the second connection area.
 4. Theelectronic device of claim 3, wherein an area of the second connectionarea is smaller than an area of the first connection area.
 5. Theelectronic device of claim 3, wherein the plurality of first cross linesare greater in number than the plurality of second cross lines.
 6. Theelectronic device of claim 1, wherein a difference in number between theplurality of first lines and the plurality of second lines is fewer thana difference in number between the plurality of first cross lines andthe plurality of second cross lines.
 7. The electronic device of claim1, wherein a first boundary between the plurality of first crosselectrodes and the plurality of second cross electrodes is spaced apartfrom a first reference line that passes through a center of the sensingarea and extends in the first direction.
 8. The electronic device ofclaim 7, wherein a second boundary between the plurality of firstelectrodes and the plurality of second electrodes is spaced apart from asecond reference line passing through the center of the sensing area andextending in the second direction.
 9. The electronic device of claim 8,wherein a distance between the second boundary and the plurality of padsis greater than a distance between the second reference line and theplurality of pads.
 10. The electronic device of claim 7, wherein theplurality of pads are spaced apart from the first reference line in thesecond direction.
 11. The electronic device of claim 7, wherein theplurality of pads comprise a plurality of first pads and a plurality ofsecond pads which are spaced apart from each other with the firstreference line therebetween.
 12. The electronic device of claim 1,wherein the display layer comprises a plurality of display padsconfigured to transmit electrical signals to the display layer, and theplurality of pads are spaced apart from the plurality of display padswith the sensing area therebetween.
 13. The electronic device of claim1, wherein the plurality of pads are spaced apart from each other alongthe second direction.
 14. The electronic device of claim 1, wherein theplurality of pads are spaced apart from each other along a directionbetween the first direction and the second direction.
 15. The electronicdevice of claim 1, wherein the plurality of first cross electrodes areat least three times greater in number than the plurality of secondcross electrodes.
 16. The electronic device of claim 1, wherein aboundary between the sensing area and the peripheral area has a circleor oval shape.
 17. The electronic device of claim 1, wherein a firstelectrode having a maximum length among the plurality of firstelectrodes has a shorter length than a second electrode having a maximumlength among the plurality of second electrodes, and a first crosselectrode having a maximum length among the plurality of first crosselectrodes has a longer length than a second cross electrode having amaximum length among the plurality of second cross electrodes.
 18. Anelectronic device, comprising: a base layer in which a sensing area anda peripheral area around the sensing area are provided; a plurality ofelectrodes disposed in the sensing area of the base layer; a pluralityof cross electrodes disposed in the sensing area of the base layer andcrossing the plurality of electrodes; a plurality of lines disposed inthe peripheral area of the base layer and electrically connected to theplurality of electrodes, respectively; and a plurality of cross linesdisposed in the peripheral area of the base layer and electricallyconnected to the plurality of cross electrodes, respectively, whereinthe plurality of lines include a plurality of first lines extendingalong a first rotation direction and a plurality of second linesextending along a second rotation direction different from the firstrotation direction, the plurality of second lines being provided in agreater number than the plurality of first lines, and the plurality ofcross lines include a plurality of first cross lines disposed betweenthe sensing area and the plurality of lines, and a plurality of secondcross lines spaced apart from the sensing area with the plurality ofsecond lines therebetween, the plurality of second cross lines beingprovided in a fewer number than the plurality of first cross lines. 19.The electronic device of claim 18, wherein: the electronic devicefurther comprises a plurality of pads disposed in the peripheral areaand electrically connected to the plurality of lines and the pluralityof cross lines, respectively; the plurality of electrodes comprise aplurality of first electrodes electrically connected to the plurality offirst lines, respectively, and a plurality of second electrodeselectrically connected to the plurality of second lines, respectively;the plurality of cross electrodes comprise a plurality of first crosselectrodes electrically connected to the plurality of first cross lines,respectively, and a plurality of second cross electrodes electricallyconnected to the plurality of second cross lines, respectively; theplurality of first electrodes and the plurality of second electrodes aresequentially arranged along a first direction, and the plurality offirst cross electrodes and the plurality of second cross electrodes aresequentially arranged along a second direction crossing the firstdirection; and the plurality of pads are spaced apart from the pluralityof first electrodes with the plurality of second electrodestherebetween.
 20. An electronic device, comprising: a display layerconfigured to display images; and a sensor layer disposed on the displaylayer, wherein the sensor layer includes a plurality of electrodesdisposed in a sensing area, a plurality of cross electrodes disposed inthe sensing area and crossing the plurality of electrodes, a pluralityof lines disposed in a peripheral area and electrically connected to theplurality of electrodes, and a plurality of cross lines disposed in theperipheral area and electrically connected to the plurality of crosselectrodes, wherein the plurality of lines include a plurality of firstlines and a plurality of second lines spaced apart from each other withthe sensing area therebetween and having a difference in number, theplurality of cross lines include a plurality of first cross lines and aplurality of second cross lines spaced apart from each other with thesensing area therebetween and having a difference in number, and thedifference in number between the plurality of first cross lines and theplurality of second cross lines is greater than the difference in numberbetween the plurality of first lines and the plurality of second lines.21. An electronic device, comprising: a sensor layer, the sensor layerincluding: a plurality of first electrodes disposed in a sensing area ofthe sensor layer and extending in a first direction; a plurality ofsecond electrodes disposed in the sensing area and extending in thefirst direction, wherein a first boundary is provided between theplurality of first electrodes and the plurality of second electrodes,the first boundary being separated by a first distance from a firstreference line extending across a center of the sensing area in thefirst direction; a plurality of first cross electrodes disposed in thesensing area and extending in a second direction intersecting the firstdirection; and a plurality of second cross electrodes disposed in thesensing area and extending in the second direction, wherein a secondboundary is provided between the plurality of first cross electrodes andthe plurality of second cross electrodes, the second boundary beingseparated by a second distance from a second reference line extendingacross the center of the sensing area in the second direction, thesecond distance being greater than the first distance.
 22. Theelectronic device of claim 21, further comprising: a plurality of padsdisposed in a peripheral area of the sensor layer; a plurality of firstlines disposed in the peripheral area and connected to the plurality offirst electrodes at a first side of the sensing area; and a plurality ofsecond lines disposed in the peripheral area and connected to theplurality of second electrodes at a second side of the sensing area,wherein a number of the plurality of first lines and a number of theplurality of second lines are different from each other.
 23. Theelectronic device of claim 22, further comprising: a plurality of firstcross lines disposed in the peripheral area and connected to theplurality of first cross electrodes at the first side of the sensingarea; and a plurality of second cross lines disposed in the peripheralarea and connected to the plurality of second cross electrodes at thesecond side of the sensing area, wherein a number of the plurality offirst cross lines and a number of the plurality of second cross linesare different from each other.
 24. The electronic device of claim 21,wherein the plurality of second cross electrodes occupies a smaller areathan the plurality of first cross electrodes.
 25. The electronic deviceof claim 21, wherein the plurality of first electrodes occupies asmaller area than the plurality of second electrodes.